On Tue, Jun 29, 2021 at 7:07 AM <ckim@etri.re.kr> wrote:

I found from https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel, the correct method to build ubuntu is (for ARCH=arm64 case)

- LANG=C fakeroot debian/rules ARCH=arm64 clean - # quicker build: - LANG=C fakeroot debian/rules ARCH=arm64 binary-headers binary-generic binary-perarch - # if you need linux-tools or lowlatency kernel, run instead: - LANG=C fakeroot debian/rules ARCH=arm64 binary

But when I tried it, it went far longer but eventually it failed with error.

….

Creating symlink /home/ckim/prj1/QEMU/qemu_test/test_ubuntu-20.04-build/focal/ubuntu-focal/debian/build/builddkms/build/zfs/0.8.3/source ->

/home/ckim/prj1/QEMU/qemu_test/test_ubuntu-20.04-build/focal/ubuntu-focal/debian/build/builddkms/source/zfs-0.8.3

DKMS: add completed.

Running the pre_build script:

checking for gawk... gawk

checking metadata... META file

checking build system type... x86_64-pc-linux-gnu

checking host system type... x86_64-pc-linux-gnu

checking target system type... x86_64-pc-linux-gnu

checking whether to enable maintainer-specific portions of Makefiles... no

checking whether make supports nested variables... yes

checking for a BSD-compatible install... /bin/install -c

checking whether build environment is sane... yes

checking for a thread-safe mkdir -p... /bin/mkdir -p

…..

checking kernel source version... 5.4.0-42-generic

checking kernel file name for module symbols... Module.symvers

checking whether modules can be built... no

configure: error:

*** Unable to build an empty module.

Building module:

cleaning build area...(bad exit status: 2)

make -j28 KERNELRELEASE=5.4.0-42-generic...(bad exit status: 2)

ERROR (dkms apport): binary package for zfs: 0.8.3 not found

Based on the error message above you may not have the zfs-dkms package installed.

Error! Bad return status for module build on kernel: 5.4.0-42-generic (x86_64)

Consult /home/ckim/prj1/QEMU/qemu_test/test_ubuntu-20.04-build/focal/ubuntu-focal/debian/build/builddkms/build/zfs/0.8.3/build/make.log for more information.

DKMS make.log for zfs-0.8.3 for kernel 5.4.0-42-generic (x86_64)

Tue Jun 29 11:43:02 KST 2021

make[1]: Entering directory '<<DKMSDIR>>/build/zfs/0.8.3/build'

make[1]: *** No targets specified and no makefile found. Stop.

make[1]: Leaving directory '<<DKMSDIR>>/build/zfs/0.8.3/build'

make: *** [debian/rules.d/2-binary-arch.mk:223: install-generic] Error 1

And according to the guide, I’m supposed to see in ../ directory two linux headers .deb files and a linux-image .deb file but I see only linux-headers-5.4.0-42_5.4.0-42.46_all.deb

Can anyone give me an advice? Any suggestion will be appreciated.

Thank you!

Chan Kim

*From:* ckim@etri.re.kr <ckim@etri.re.kr> *Sent:* Tuesday, June 29, 2021 10:04 AM *To:* kernelnewbies@kernelnewbies.org *Subject:* kernel build error during ubuntu linux kernel build

Hello, all

I have a strange problem in building the linux kernel from ubuntu. (I want to replace the kernel in ubuntu to debug install failure on qemu virtual machine)

I downloaded ubuntu source by “git clone git:// kernel.ubuntu.com/ubuntu/ubuntu-focal.git”. and because I wanted to use a specific version, I did “git checkout Ubuntu-5.4.0-42.46” (this version is the one used in a ubuntu installation .iso.

And you can see related askubuntu question here : https://askubuntu.com/questions/1347390/what-ubuntu-source-version-should-i-... )

After git-checkout, the `git log` shows this result :

commit 98c4545e2d65ed35c31056f72c4da20f6b5ea0d0 (HEAD, tag: Ubuntu-5.4.0-42.46)

Author: Khalid Elmously <khalid.elmously@canonical.com>

Date: Thu Jul 9 19:50:26 2020 -0400

UBUNTU: Ubuntu-5.4.0-42.46

Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

To build the kernel, I did `ARCH=arm64 CROSS_COMPILE=aarch64-none-elf- make defconfig` and `ARCH=arm64 CROSS_COMPILE=aarch64-none-elf- make -j24 Image`. But this gives me a compile error below. What can be wrong?

.

.

CC mm/interval_tree.o

CC drivers/base/regmap/regcache.o

CC kernel/time/posix-cpu-timers.o

CC mm/list_lru.o

CC block/blk-mq.o

AS arch/arm64/lib/memchr.o

CC fs/ext4/migrate.o

security/security.c: In function 'security_add_hooks':

security/security.c:477:25: error: 'struct security_hook_heads' has no member named 'socket_getpeersec_stream'

477 | &security_hook_heads.socket_getpeersec_stream)

| ^

CC kernel/time/posix-clock.o

AS arch/arm64/lib/memcmp.o

security/security.c: In function 'security_setprocattr':

CC arch/arm64/kvm/../../../virt/kvm/arm/vgic/vgic-v2.o

security/security.c:2058:27: error: 'union security_list_options' has no member named 'socket_getpeersec_stream'

2058 | socket_getpeersec_stream.socket_getpeersec_stream = NULL;

| ^

In file included from ./include/linux/timer.h:5,

from ./include/linux/workqueue.h:9,

from ./include/linux/bpf.h:9,

from security/security.c:13:

security/security.c:2060:25: error: 'struct security_hook_heads' has no member named 'socket_getpeersec_stream'

2060 | &security_hook_heads.socket_getpeersec_stream,

| ^

./include/linux/list.h:857:12: note: in definition of macro 'hlist_entry_safe'

857 | ({ typeof(ptr) ____ptr = (ptr); \

| ^~~

security/security.c:2059:3: note: in expansion of macro 'hlist_for_each_entry'

2059 | hlist_for_each_entry(hp,

| ^~~~~~~~~~~~~~~~~~~~

security/security.c:2060:25: error: 'struct security_hook_heads' has no member named 'socket_getpeersec_stream'

2060 | &security_hook_heads.socket_getpeersec_stream,

| ^

./include/linux/list.h:857:28: note: in definition of macro 'hlist_entry_safe'

857 | ({ typeof(ptr) ____ptr = (ptr); \

| ^~~

security/security.c:2059:3: note: in expansion of macro 'hlist_for_each_entry'

2059 | hlist_for_each_entry(hp,

| ^~~~~~~~~~~~~~~~~~~~

In file included from ./include/linux/list.h:9,

from ./include/linux/timer.h:5,

from ./include/linux/workqueue.h:9,

from ./include/linux/bpf.h:9,

from security/security.c:13:

./include/linux/kernel.h:993:17: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

993 | void *__mptr = (void *)(ptr); \

| ^

./include/linux/list.h:847:40: note: in expansion of macro 'container_of'

847 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)

| ^~~~~~~~~~~~

.

.

BTW, when I do the same with linux-5.4.21 vanila source, it compiles ok.

Can anyone give me an advice? Could this Ubuntu-5.4.0-42.46 version have a bug and maybe I need a patch?

Thank you!

Chan Kim

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On Thu, Jul 1, 2021 at 4:03 AM <ckim@etri.re.kr> wrote:

Hello Alexander Kapshuk,

Thanks for the reply. Following your advice, I installed `sudo apt install zfs-dkms` ( it gave me this scary-looking warning below I just installed it, because I’ll not distribute anything)

It installs sources for zfs-dkms and I understand it contains bash script to automatically compile it when the kernel changes.

I later found I had to do these commands.

export $(dpkg-architecture -aarm64); export CROSS_COMPILE=arm-linux-gnueabihf-

LANG=C fakeroot debian/rules ARCH=arm64 CROSS_COMPILE=aarch64-none-linux-gnu- clean

LANG=C fakeroot debian/rules ARCH=arm64 CROSS_COMPILE=aarch64-none-linux-gnu- binary-headers binary-generic binary-perarch

Before this, I had to download gcc-arm-10.2-2020.11-x86_64-aarch64-none-linux-gnu from https://developer.arm.com/tools-and-software/open-source-software/developer-... because I saw some compiler error related to STACKPROTECTOR compile option when I used gcc tool from linaro which was based on gcc 7.5 (I remember, the new toolchain is gcc 10.2 based).

With these, I could finally compile ubuntu 20.04!

Great to hear. Thanks for letting us know.

(For those interested, please see https://unix.stackexchange.com/questions/656263/how-to-build-ubuntu-for-arm6... )

Thank you!

Chan Kim

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